Motor.



Jaw/W0.

G. B. REDRUP.

MOTQR. APPLICATION FILED MAE.22, 1909.

Fig.1.

Patented Aug. 1, 1911 2 SHEETS-SHEET 1.

C. B. REDRUP.

MOTOR.

APPLICATION FILED MAE.22,1909.

Pzitented Aug. 1, 1911.

2 SHEETS-SHEET 2.

EH?!" RU'AHJEBLE COPY CHARLES BENJAMIN REDRUP, F BARRY DOCK, ENGLAND.-

MOTOR.

seams.

To all whom it may concern:

Be it known that 1,. CHARLES :BENJAMIN Rrnnur a subject of the King of Great Britain and Ireland, residing at22 Guthrie street,Barry Dock, Glamorganshire, England motor mechanic, have invented certain new and useful Improvements in and Relating to Motors, of which the following is a specification.

panying drawing in whichrock it 72. casing and Figure 1 is a sectional elevation of a rotary motor provided according to myinveir tion, Fig. 2 is a front elevation partly in section, Fig. this a sectional elevation on the line A--B of Fig. 2.

According to the invention I provide means for operating each set of valves (1, b of the respective cylinders c and (Z of the ro-. tary motor, consisting of a two-to-one skew gear e f which causes the rotation of a cam shaft 9 upon which cams g g? are mounted, that periodically cause the reciprocation of mounted upon the cylinder or advantageously parallel with the center line thereof, with their opposite extremities respectively disposed beneath or connected. to valve operating levers j j so that thus on the-reciprocation of the rod it 6r 7& effected on the rotation of the cam g or g the-valve lever 9' or 7' is operated to open the corresponding valve.

For the purpose of taking up the wear of the cams on the cam shaft I prefer to provide the cam shaft 7 with a screw thread and the gear wheel f mounted thereon with bosses having internal conical recesses. The cams g" g are provided with conical bosses fitting withinthe internal conical rccesses of the gear wheel f. One of the cams is provided with a screw thread and screwed upon the cam shaft 9 and behind this cam is screwed a lock nut 11.. The othencam is loosely mounted upon the shaft and the two cams are drawn into the conical recesses of the gear Wheel j by the nut v screwed upon the cam shaft;

Specification of Letters Patent. Application filed March 22, 1909.

By these meansit will be.

.spindle 10 is valve 9 is kept closed by a spring 12 mo 100 Patented Aug. 1, 1911. Serial No. 485,144.

mount the piston 16 or ltdo reciprocate 0 within a'small cylinder or casing [i or it in the end of which a ball z" or 2' is mounted which contacts with the cam g or 1 so that by such means the contact of the cam g or g with the ball z" or 2' i causing the rotation of the ball and involvinglittle friction and noise.

Fol-the purpose of preventing the valves a b from'falling into the piston cylindersI provide their spindles groove '11: around which passes the forked arm of lever g which is pivoted on the same pin as the lovers j The lever y operating upon tlfteexhaust valve 6 is prolonged beyond the pivot rod or acted upon by a spring a of which the tension is adjusted by nuts I. The tension in this spring is such that it continually' tends to keep the valve 6 closed.

I t will be understood that one'meinbei' of the skew gear may be conveniently mounted on the spindle or trunnion c upon which the cylinders (1 cl rotate. According to the invention, moreover, I provide a baftle plate A: suitably fixed in front of the 85 aperture in or port in the hollow crank shaft within the crank chamber through which the gas is drawn in, so as to prevent the petrol vapor from washing the crank shaft bea'rings'and in order coming gases against the walls of the crank chamber. This baflle plate is perforated near its edges as illustrated and is secured inposition on each side of the aperture L" by bolts as illustrated.

Between the hollow crank shaft 6" and the pipe 8 leading to the carburetor is provided a nonreturn valve 9 of whim the guided in a sleeve 11. his

vided between the valve 9 and a washer 13 which latter forms an air tight joint between the hollow crank shaft e and the pipe 3.

The pipe 8 leading from the carburetor is provided with a slot so as to permit of its be- 105 mg passed over the pipe 14 adapted for the supply of oilto, the hole 3 in the hollow crank shaft. For the supply of oil the hollow crank shaft is provided with a hole 3,

for which purpose, as the said shaft must be 10 s a wiping contact 5 w with a circular 70 and is in connection with a also to spread the in- 9 of any suitable form for the purpose.

v5. passes to one of the inlet valves a by means capable of resisting the twisting effort, it is thickened in the manner shown. According to the invention, moreover, I provide in a twin cylinder rotary motor of the type referred to, two storage chambers a n inde pendent of each other and communicating with the common crank chamber.

the form of av spherical space n centrally provided advantageously in line with the center of the crank chamber on each side thereof, such space communicating with the crank chamber'bymeans of a central tubular part a which preferably protrudes into the space a referred to and alines with a corresponding central aperture provided on the respective side of thecrank chamber.

The upper'space a referred to provided in the storage chamber n communicates by means of a suitable passage a" disposed preferably parallel with the axis of the "cyl inder I with the inlet valve box or with the space surrounding the inlet valve a. It will thus be understood that a storage chamber n so formed is provided on each side of the twin cylinder engine, they being oppositely disposed one to the other and communicating as described with the respective inlet valve boxes or with the passages leading to the respective inlet valves a. For the purpose of preventing 1 any oil from entering the tubular part 72 this is projected into the crank casing and a plate 2 is placed some distance in front thereof for the purpose of preventing any oil from dripping therein, during the rota tion of the engine.

According to the invention in the provision of a twin cylinder engine I provide two exhaust silencers 0 of curvilinear form disposed one on each side of the respective cylinders c 03 so as together with the heads of the respective cylinders to complete a circle. These respective exhaust silencers 0 are connectedat one end to communicate with the space surrounding the respective exhaust valves. 6 and each has a central curvilinear dividing diaphragm 0 by which a chamber 0' 0 is formed of a length double that of the exhaust silencer, the exhaust passing first throughout thelength of the silencer through one compartment 0? and then passing the length of the silencer in the opposite direction through the other compartment 0 whence it issues out at the periphery thereof through holes 0 provided for the purpose. It will be understood that an exhaust silencer so provided maybe formed with radiating gills or ribs 0 and may be otherwise The operation of theengine isas follows.

3 The combustible charge is admitted from the carburetor through the hollow crank shaft into the crank chamber from where it These storage chambers 71 a conveniently each takes the openings 0 provided on one side of of one of the storage chambers a. After the compression and explosion of the charge the outlet valve 6 is opened by the skew gear and the exhaust gases pass into the silencer 0 and along the passage ,0 thereof vto the end of the silencer, and thenpass along the passage 0 and exhaust through the aperture or port in the hollow crank shaft leading into the crank chamber.

2. The combination with a rotary motor of the rotating cylinder type comprisingcylinders, a crank chamber intermediate of said cylinders, a carbureter, and a hollow I crank shaft connecting the crank chamber to the carbureter of a battle plate fixedin front of the aperture or port in the hollow crank shaft leading into the crank chamber,

said battle plate being perforated, and means for securing said baffle plate in front of the aperture in the hollow crank shaft;

3. In a twin cylinder rotary'motor, cylinders, inlet and outlet valves in said cylinders, said cylinders having a space around each inlet valve, means for the compression of the charge before admission to the respective cylinders, consisting of pistons within said cylinders, a crank chamber, a storage chamher for each cylinder, said storage chamber having a spherical end, a tube extending from the crank chamber into thespherical end of the storage chamber and means. of communication between the saidspherical part and the space surrounding the respective inlet valve.'

4. A twin cylinder rotary motor compris- H chamber, said storage chambers having aperj cylinders, said cylinders having a space ing cylinders, inlet and outlet valves in said a seams longitudinal axes of said cylinders, a 'crank chamber, said crank chamber being provided with openings in diametrically opposite positions and transverse to the axis of rotation of the cylinders for the passage therethrough of the combustible charge, a storage" chamber on each side of said crank chamber,

each of said storage chambers having a spherical end, said storage chambers having apertures registering 'with those in the crank chamber and means of communication between the said storage chambers and the spaces surrounding the respective inlet valves.

6. In a twin cylinder rotary motor of the rotating cylinder ty e, the engine shaft, cylinders disposed ra ially on diametrically opposite sides of 'the shaft, an exhaust silencer of'substantially semi-circular form disposed on each side of the respective cylinders so as with the heads of the cylinders to complete a circle, valve chambers provided in the cylinders, exhaust valves, means of communication between the exhaust valve chambers and the exhaust silencers, said exhaust silencers each being rovided with a curved diaphragm separating the silencer into two parts, mans of communication between the two parts of each silencer and means permitting the exhaust of the gases from the silencer provided on the outerside of the silencer so that the gases can exhaust at the periphery of the silencer.

In testimony whereof I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

i CHARLES BENJAMIN REDRUP. Witnesses:

WM. FORCE Swan, Tnos. H. (1001:. 

